Slow when loading with UITableView

[lunayo]

There is some performance issue (lagging) when trying to reload the tableview which contains a number of cells that was added with the waveform view. I have tried to concurrently load the waveform view with GCD but it is not very stable — keep crashing.

[pixlwave]

I'm hitting a similar issue, but with a 1 or 2 second delay when modally presenting a view controller with an SCWaveformView in it's hierarchy. I've had a look at the code, but as the wave is drawn using an array of layers, I presume that queuing this to run in the background is an impossible task?